A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ground improvement using vertical drains
Consolidation settlement of low permeability soils often create serious problems for foundation engineers. Ground improvement with vertical drains has been an accepted practice for improving soft, clayey deposits. Vertical drains are required to have high permeability and sufficiently high drainage capacity so that pore water escapes in horizontal direction towards the nearest drain. The water then flows freely vertically along the drain to a drainage blanket placed on the soil surface or to a highly permeable layer above or below the clay layer. While sandwicks proved to be more economical than the large diameter sand drains, improvements in the quality of fabric etc. produced a product called 'band drains'. These band shaped drains usually have a core of plastic material with a filter sleeve of paper or some other fibrous material, usually plastic. The first documented case of use of band drains by an Indian contractor was by Kvaerner Cementation Ind. Ltd. in the year 1992 for the development of the Kikinada deep sea port in Andhra Pradesh. More recently, the technique was used by KCIL for Jawaharlal Nehru Port expansion in Raigarh district of Maharashtra.
Ground improvement using vertical drains
Consolidation settlement of low permeability soils often create serious problems for foundation engineers. Ground improvement with vertical drains has been an accepted practice for improving soft, clayey deposits. Vertical drains are required to have high permeability and sufficiently high drainage capacity so that pore water escapes in horizontal direction towards the nearest drain. The water then flows freely vertically along the drain to a drainage blanket placed on the soil surface or to a highly permeable layer above or below the clay layer. While sandwicks proved to be more economical than the large diameter sand drains, improvements in the quality of fabric etc. produced a product called 'band drains'. These band shaped drains usually have a core of plastic material with a filter sleeve of paper or some other fibrous material, usually plastic. The first documented case of use of band drains by an Indian contractor was by Kvaerner Cementation Ind. Ltd. in the year 1992 for the development of the Kikinada deep sea port in Andhra Pradesh. More recently, the technique was used by KCIL for Jawaharlal Nehru Port expansion in Raigarh district of Maharashtra.
Ground improvement using vertical drains
Untergrundverbesserung durch Verwendung von senkrechten Drainagekanälen
Kumar, M. (author) / Manoj, S.S. (author)
Man made Textiles in India ; 43 ; 365-369
2000
5 Seiten, 5 Bilder
Article (Journal)
English
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